JP2002087047A - Vehicular air-conditioning duct structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the installation performance of an air-conditioning duct while suppressing a degradation in assembly performance of and an increase in weight of a beam member. SOLUTION: A beam member 100 is provided with an open sectional form and an air-conditioning duct 200 is assembled from the opening, which can reduce the assembly man-hour of the beam member to improve the assembly performance of the beam member. Even when the sectional area of an air passage in the air-conditioning duct 200 is increased the open sectional form of the beam member 100 can prevent an increase in sectional area of the beam member 100 corresponding to the increased size of the air-conditioning duct 200. The beam member 100 can be protected from an unnecessary increase in rigidity and a resultant unnecessary increase in weight.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle duct structure of a vehicle air conditioner, and is effective when applied to general passenger vehicles such as sedans, wagons and minivans.

[0002]

2. Description of the Related Art A beam member such as a rain bar extending in the width direction of a vehicle is provided on the front side of a vehicle compartment (near a partition wall for partitioning an engine room and a vehicle compartment). And equipment such as a steering shaft and electric wiring (wire harness).

An air outlet (side face outlet) provided on the side of the vehicle is generally mounted at a substantially central portion in the vehicle width direction through an air conditioning duct extending substantially parallel to the beam member. The conditioned air is supplied from the air-conditioned unit.

At this time, in order to reduce the pressure loss in the air conditioning duct and supply a sufficient amount of conditioned air to the vehicle interior (air outlet), it is desirable to increase the cross-sectional area of the passage of the air conditioning duct. If the passage cross-sectional area of the duct is increased, a space for mounting the air-conditioning duct becomes large, so that the mountability of the air-conditioning duct on a vehicle is reduced.

On the other hand, by incorporating the air-conditioning duct in the beam member, the mounting space for the air-conditioning duct and the mounting space for the beam member are shared, thereby suppressing an increase in the space for mounting the air-conditioning duct. Means for doing so are being considered.

[0006]

However, according to the above-mentioned means, as shown in FIG. 24, the beam member is composed of first and second members R1 and R2 having an L-shaped cross section, and the air conditioning duct is provided. Since the air-conditioning duct is inserted into the beam member so as to be sandwiched between the first and second members R1 and R2, the first and second members R1 and R2 are joined by a joining method such as welding or caulking. A process for connecting the first and second members R1 and R2 occurs, and the number of assembling steps increases when assembling the beam member to the vehicle.

Further, as the size of the air-conditioning duct increases, the cross-sectional area of the beam member inevitably increases, so that the rigidity of the beam member increases more than necessary, causing an unnecessary increase in weight.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to improve the mountability of an air-conditioning duct while suppressing deterioration in assemblability and weight increase of a beam member.

[0009]

In order to achieve the above object, according to the present invention, in the first aspect, the present invention extends in a vehicle width direction, is fixed to a vehicle body, and is fixed in a direction perpendicular to the longitudinal direction. A beam member (100) having an open cross-section having an open opening (101); and a resin air conditioning duct (100) that is incorporated into the beam member (100) from the opening (101) and forms a passage through which air flows. 200) and a beam member (10
And a bracket member (110) provided at both ends in the longitudinal direction of (0) for closing the longitudinal end of the beam member (100) and fixing the beam member (100) to the vehicle body.

Accordingly, in the present invention, the first and second members R as described in the section of "Problems to be Solved by the Invention"
1. No step of bonding R2 occurs. Therefore, the number of steps for assembling the beam member can be reduced, and the ease of assembling the beam member can be improved.

Further, since the beam member (100) has an open cross-sectional shape, even if the air passage cross-sectional area of the air conditioning duct (200) is increased, the beam is interlocked with the increase in the size of the air conditioning duct (200). It is possible to prevent the cross-sectional area of the member (100) from increasing. Accordingly, it is possible to prevent the rigidity of the beam member (100) from becoming unnecessarily high, and to prevent an unnecessary increase in weight.

As described above, according to the air-conditioning duct structure for a vehicle according to the present invention, the air-conditioning duct (20) is prevented while the deterioration of the assemblability of the beam member (100) and the weight increase are suppressed.
0) The mountability on a vehicle can be improved.

Further, since the longitudinal end of the beam member (100) is closed by the bracket member (110) and has a closed cross section, the beam member (100) is bent without being unnecessarily heavy. The rigidity and torsional rigidity (strength) can be effectively improved.

According to the second aspect of the present invention, a connecting duct for connecting an air outlet opening to a design panel covering the air conditioning duct (200) and a duct opening (201) opening to the air conditioning duct (200). (230), a portion of the air-conditioning duct (200) provided with the duct opening (201) is provided with reinforcement for preventing the air-conditioning duct (200) from being collapsed in the opening direction of the duct opening (201). A member (103, 240) is provided.

The reinforcing member (103) is desirably formed by cutting and raising a part of the beam member (100).

According to the fourth aspect of the present invention, the connecting duct (23) for connecting the air outlet opening to the design panel for covering and hiding the air conditioning duct (200) and the air conditioning duct (200).
0), and the connecting duct (230) is provided with an air conditioning duct (2).
00) A connection member (24) formed of a harder resin
0) through an air conditioning duct (200).

Thus, the air-conditioning duct (200) can be prevented from collapsing in the opening direction of the duct opening (201), similarly to the second aspect of the invention.

According to the fifth aspect of the present invention, the connecting duct (21) for connecting the air outlet opening to the design panel covering the air conditioning duct (200) and the air conditioning duct (200).
0), and a duct reinforcing portion (140) for reinforcing the connecting duct (210) is formed by at least one of the beam member (100) and the bracket member (110).

In the invention according to claim 6, the air conditioning duct (200) is provided with a resin wiring cover (220) for covering the electric wiring (W / H). .

Thus, the electric wiring (W / H) can be easily protected.

In the invention according to claim 7, the beam member (10
0) is provided with a wiring supporting portion (130) for supporting the wiring covering portion (220).

Thus, the electric wiring (W / H) can be easily supported and fixed.

In the invention according to claim 8, the beam member (10
0) is characterized in that a reinforcing member (120) having a partially cross-sectional shape of the beam member (100) is provided.

Thus, the beam member (100) is more than necessary.
The strength of the beam member (100) can be effectively improved without increasing the weight of the beam member.

The air outlet and the air conditioning duct (200) opened in the design panel for covering and covering the air conditioning duct (200).
The connecting duct (120) for connecting the beam member (1) with the mechanical fastening means (212) according to the ninth aspect of the present invention.
00).

At this time, the air-conditioning duct (200) of the connecting duct (120) is provided as in the tenth aspect of the present invention.
If the connecting duct (210) is inserted into the air-conditioning duct (200) so that the side end (210a) is located on the inner side of the inner wall of the air-conditioning duct (200), the connecting duct (21)
0) and the air conditioning duct (200) can be joined in an airtight manner.

Further, according to the invention as set forth in claim 11,
If the flange portion (211) protruding outwardly over the entire outer periphery of the cylindrical portion (210b) of the connecting duct (210) is brought into surface contact with a part of the air conditioning duct (200), the connecting duct (210) is obtained. The airtightness between the air conditioner and the air conditioning duct (200) can be further improved.

Further, according to the twelfth aspect of the present invention, a part of the air conditioning duct (200) is connected to the beam member (100).
If the flange portion (211) is brought into surface contact with the flange portion (211) in a state of being sandwiched between the connecting duct (210) and the air conditioning duct (200), the airtightness can be further improved.

Further, the connecting duct (120) may be fixed to at least one of the reinforcing member (120) and the bracket member (110).

Further, according to the invention of claim 14,
A beam member (100) having an open cross-sectional shape having an opening (101) extending in the vehicle width direction and fixed to a vehicle body and opened over the entire longitudinal direction; and a beam member (100) extending from the opening (101). A resin air-conditioning duct (200) which is incorporated in the inside and constitutes a passage through which air flows, and beam members (10) provided at both longitudinal ends of the beam member (100).
0), and the beam members (10) are closed.
Bracket member (110) for fixing 0) to the vehicle body
And a reinforcing member (120) for closing the opening (101) over substantially the entire area, and an air conditioning duct (120) is provided in a closed space formed by the beam member (100) and the reinforcing member (120). 200) and electrical wiring (W / H).

By the way, the reference numerals in parentheses of the respective means are examples showing the correspondence with specific means described in the embodiments described later.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment)
The vehicle duct structure according to the present invention is a sedan (three boxes)
FIG. 1A is a perspective view of a duct structure for a vehicle according to the present embodiment, and FIG.
FIG. 2 is a sectional view taken along the line AA in FIG.

In FIG. 1, reference numeral 100 denotes a reinforcement bar (hereinafter, referred to as a beam member) extending in the vehicle width direction and fixed to a vehicle body (not shown). As shown in FIG. 1 (b), a direction orthogonal to the longitudinal direction (vehicle width direction) (in this embodiment, the upper side).
It is made of a metal (aluminum alloy in the present embodiment) which is extruded into a C-shaped open cross-sectional shape so as to have an opening 101 which is open over substantially the entire longitudinal direction (vehicle width direction). .

At both ends in the longitudinal direction of the beam member 100, bracket members 110 for fixing the beam member 100 to the vehicle body are provided.
Is welded to the beam member 100 so as to close the longitudinal end of the beam member 100, as shown in FIG.

In FIG. 1, reference numeral 200 denotes a resin having excellent heat insulation properties (foam sheet in the present embodiment) constituting a passage of conditioned air (conditioned air) supplied from an air conditioning unit (not shown). Air-conditioning duct made of
No. 0 is incorporated into the beam member 100 from the opening 101 so as to elastically deform the air conditioning duct 200 after molding. The air-conditioning unit is located substantially at the center of the vehicle in the vehicle width direction, and adjusts the temperature and humidity of the air blown into the vehicle cabin to balance the air blown into the vehicle cabin.

Reference numeral 210 denotes a side face air outlet (not shown) opened in a design panel (not shown) and a duct opening (not shown) opened in the air conditioning duct 200.
This is a side-face connecting duct that connects to the air-conditioning duct 200. The side-face connecting duct 210 is harder (has a higher mechanical strength) than the air-conditioning duct 200 (in the present embodiment,
It is made of polypropylene). Here, the design panel means a panel that covers the air conditioning duct 200 and constitutes a design surface on which a design design (aesthetic design) is applied.

The side face connecting duct 210
Is airtightly fitted to the air-conditioning duct 200 so as to be inserted into the air-conditioning duct 200. The side-face connecting duct 210 and the side-face air outlet provided in the design panel are formed by packing such as sponge. They are airtightly joined via a material (sealing means).

Reference numeral 120 denotes a shaft stay 1 for supporting a steering shaft (not shown) of the beam member 100.
Reference numeral 02 denotes a reinforcing member provided at the portion where the beam member 100 is provided. The rigidity of the beam member 100 is increased by closing the opening 101 with the reinforcing member 120 to form a closed cross-sectional shape.

In this embodiment, the air conditioning duct 200
Is assembled into the beam member 100, and the reinforcing member 120 is joined to the beam member 100 by a mechanical fastening method such as caulking, rivets, and bolts.

Reference numeral 130 denotes a gutter-like (beam member 100) for supporting the electric wiring W / H connected to the air conditioning unit and the instrument panel.
The wire support portion 130 is formed integrally with the beam member 100 by extrusion molding.

Note that, after the extrusion molding, the unnecessary portion (the portion indicated by reference numeral 131 in FIG. 1A) of the wiring support portion 130 is cut (cut) and deleted. The electric wiring W / H branched from the electric wiring W / H provided in the wiring support portion 130 (see FIG. 14).
The part where is provided is removed.

In the air-conditioning duct 200, a portion corresponding to the wiring support portion 130 is provided with a wiring covering portion 220 that covers the electric wiring W / H and protects the electric wiring W / H. The wiring cover portion 220 utilizes an extra molding portion generated during molding of the air conditioning duct 200. The extra wiring portion (the wiring covering portion 220) wraps the electric wiring W / H, and the extra molding portion remains wrapped. (Wiring cover 220)
Are inserted so as to be pushed into the wiring support portion 130.

By the way, the surplus part is the air conditioning duct 200
This is an extra portion such as a burr generated when molding is formed, and is usually a portion to be trimmed (deleted).

A substantially central portion in the longitudinal direction of the air conditioning duct 200 is provided with a center duct opening for blowing conditioned air toward a center face air outlet (not shown) for blowing conditioned air toward the upper body of the occupant. (Hereinafter, abbreviated as a duct opening) 201 is provided.
3, is connected to a center face air outlet through a center face connecting duct 230, as shown in FIG. Incidentally, the air outlet for the center face is opened at substantially the center of the design panel on the front side in the vehicle compartment.

The center face connecting duct 23
Similarly to the side face connecting duct 210, the resin 0 is made of a resin (polypropylene in this embodiment) harder (having a higher mechanical strength) than the air conditioning duct 200, and is provided on the center face connecting duct 230 and the design panel. The air outlet for the center face is hermetically joined via a packing material (seal means) such as a sponge.

At the portion of the air-conditioning duct 200 where the duct opening 201 is provided, a partition-like cut-and-raised piece 103 which cuts and raises a part of the beam member 100 has a partition wall provided on the air-conditioning duct 200. The cut-and-raised piece 103 pushes the center face connecting duct 230 into the duct opening 201, and the center face connecting duct 2
A reinforcing member is configured to prevent the air conditioning duct 200 from being crushed in the opening direction of the duct opening 201 by a holding pressing force for keeping the 30 connected to the duct opening 201.

Here, the partition wall 203 is
The air supplied from the air conditioning unit 300 to the air conditioning duct 200 by partitioning the space inside the
1 and air supply duct for side face 210
And the air to be supplied to the air.

The air-conditioning unit 300 is
Is fastened to the gap between the air conditioning unit 300 and the beam member 100 by a fastening means such as a bolt 301.
A packing material (seal means) 302 such as a sponge for maintaining the airtightness between the both 300 and 100 is provided.

FIG. 4 is a view of the connecting duct 230 for the center face viewed from above. The connecting duct 230 for the center face is designed to avoid interference with the display means 400 such as a car navigation display. It is composed of two substantially L-shaped ducts when viewed from above,
The design panel 410 and the duct opening 201 are connected.

In FIG. 1A, reference numeral 104 denotes the beam member 10.
The center brace is a center brace (post member) that supports the beam member 100, and one end of the post member 104 is welded to the beam member 100, and the other end is connected to the floor of the vehicle body by bolts or the like. It is fixed by fastening means.

Next, the features (effects) of this embodiment will be described.

According to the present embodiment, the beam member 100 has an open cross-sectional shape and the air conditioning duct 200 is incorporated from the opening 101 thereof. The first, as described in the section,
There is no step of joining the two members R1 and R2. Therefore, the number of steps for assembling the beam member can be reduced, and the ease of assembling the beam member can be improved.

Further, since the beam member 100 has an open cross-sectional shape, even if the cross-sectional area of the air passage of the air-conditioning duct 200 is increased, the beam member 1 is linked to the enlargement of the air-conditioning duct 200.
00 can be prevented from increasing. Therefore, it is possible to prevent the rigidity of the beam member 100 from becoming unnecessarily high and unnecessarily increasing the weight.

As described above, according to the vehicle air-conditioning duct structure according to the present embodiment, the mounting of the air-conditioning duct 200 on a vehicle is suppressed while the deterioration of the assemblability of the beam member 100 and the increase in weight are suppressed. Can be improved.

Since the beam member 100 can be regarded as a fixed support structure at both ends, it can be considered that the largest bending moment acts on the longitudinal end of the beam member 100.

In the present embodiment, since the longitudinal end of the beam member 100 where the bending moment is greatest is closed by the bracket member 110 and has a closed cross-sectional shape, the beam member 100 is unnecessarily heavy. Without this, the bending rigidity and the torsional rigidity (strength) can be effectively improved.

By the way, since the air which is cooled and heated and harmony is circulated in the air conditioning duct 200, the material of the resin constituting the air conditioning duct 200 has a large number of air bubbles inside as described above. Although it is desirable to have a foamed sheet, since a large number of air bubbles are formed inside, mechanical strength such as bending rigidity is low.

For this reason, the air-conditioning duct 200 may be crushed in the opening direction of the duct opening 201 by the pressing force from the connecting duct 230 for the center face, but in the present embodiment, the reinforcing member (cut-and-raised piece 103) is provided. The air-conditioning duct 200 is
Can be prevented from being crushed in the opening direction.

In the present embodiment, the wiring cover 220
Is provided in the air conditioning duct 200, so that there is no need to separately perform an operation for protecting the electric wiring W / H such as wrapping a protective tape around the electric wiring W / H. Therefore, the number of steps for assembling the air-conditioning duct 200, which involves the installation of the electric wiring W / H, can be reduced, and the assembling of the air-conditioning duct 200 can be improved.

In this embodiment, the beam member 100 is used.
Has an opening 101, the center face connecting duct 230 (hereinafter, abbreviated as connecting duct 230) can be assembled to the air conditioning duct 200 from the opening 101 as shown in FIG. 4. For
In the related art in which the beam member 100 has a closed cross-sectional shape without an opening, as shown in FIG.
00 was connected to a duct opening (not shown) provided on the display means 400 side.

For this reason, in the prior art, the beam member 1
The dimension L from the beam member 100 to the design panel 410 is larger than the dimension L in the vehicle duct structure according to the present embodiment due to the existence of the connecting duct 230 between the 00 and the display means 400.

On the other hand, in the present embodiment, as described above, the connecting duct 230 can be assembled from the opening 101 to the air conditioning duct 200, so that the connecting duct 230 is provided between the beam member 100 and the display means 400. Does not exist,
The dimension L from the beam member 100 to the design panel 410 can be reduced.

By the way, if the beam member 100 has a closed cross-sectional shape without an opening, the beam member 100 has an opening at a portion where a duct connected to the air conditioning duct 200 such as the side face connecting duct 210 is connected. Since it is necessary to provide a part, for example, when the position where the duct is connected is different for each vehicle type, it is necessary to prepare a beam member having a different opening position for each vehicle type, In the present embodiment, since the beam member 100 has an open cross-sectional shape having the opening 101, it is possible to connect the duct to the air conditioning duct 200 at an arbitrary position without being affected by the beam member 100.

Therefore, since the beam member 100 can be used as a common component regardless of the type of vehicle, the type of component can be reduced, and the manufacturing cost of the vehicle duct structure can be reduced.

FIG. 6 shows an example in which the connecting duct 210 for the side face on the right side of the vehicle is shifted with respect to FIG.

As shown in FIG. 1 (a), the reinforcing member 120 is partially provided only at a specific portion (part in this example, a portion supporting the steering shaft) which requires particularly high strength.
Is provided, the strength of the beam member 100 can be effectively improved without unnecessarily increasing the weight of the beam member 100.

In this embodiment, the connecting duct 230 for the center face is formed of polypropylene, and the connecting part to the air outlet for the center face provided on the design panel is made of a packing material (seal) such as a sponge. However, the present embodiment is not limited to this. If the connecting duct 230 for the center face is formed of a foam sheet similarly to the air conditioning duct 200, a packing material such as a sponge may be used. (Sealing means) can be eliminated.

(Second Embodiment) In the first embodiment, the reinforcing member for preventing the duct member 201 from being crushed in the opening direction of the duct opening 201 by the cut-and-raised piece 103 formed by cutting and raising a part of the beam member 100 is formed. In the present embodiment, as shown in FIG. 7, a portion of the air conditioning duct 200 corresponding to the duct opening 201 is made of a resin (polypropylene in this embodiment) harder (having a higher mechanical strength) than the air conditioning duct 200. Is provided, and the connecting member 240
The connection duct 230 and the air-conditioning duct 200 are connected to each other via the connection duct 0.

In this embodiment, the air-conditioning duct 200 is pressed against the inner wall of the beam member 100 by the connecting member 240 to prevent a gap from being formed between the air-conditioning unit 300 and the air-conditioning duct 20. The conditioned air is prevented from leaking outside through the duct 20 and the gap.

(Third Embodiment) In the first and second embodiments,
The side face connecting duct 210 is an air conditioning duct 200
In this embodiment, as shown in FIG. 8, the side face connecting duct 210 is integrally formed with the air conditioning duct 200 using a foam sheet, and the side face connecting duct 210 is formed as shown in FIG. The duct reinforcing portion 140 to be reinforced is connected to at least one of the beam member 100 and the bracket member 110 (in the present embodiment, the beam member 1
00 and the bracket member 110).

As a result, the duct structure including the side face connecting duct 210 can be simplified and the number of parts can be reduced, so that the manufacturing cost of the vehicle duct structure can be reduced.

In the present embodiment, the side face connecting duct 210 is formed integrally with the air conditioning duct 200. However, the present embodiment is not limited to this. For example, the side face connecting duct 210 is connected to the air conditioning duct 20.
And the duct reinforcement 140 is formed separately from the beam member 10.
0 and at least one of the bracket members 110 (both the beam member 100 and the bracket member 110, or one of the beam member 100 and the bracket member 110).

In FIG. 8, the reinforcing member 120 is not provided, but the reinforcing member 120 may be provided as appropriate according to the required strength of the beam member 100.

(Fourth Embodiment) This embodiment is similar to FIGS.
As shown in FIG. 0, a flat cable in which a plurality of electric wirings are bundled in a plate shape is used as the electric wiring W / H.

Note that a flat cable (electrical wiring W /
H) When sufficient electrical insulation can be secured by itself, a flat cable (electrical wiring W / H) is provided between the beam member 100 and the air conditioning duct 200 as shown in FIG. You may. As a result, the flat cable (electrical wiring W / H) is surrounded by the metal beam member 100, so that the flat cable (electrical wiring W / H) is formed.
In contrast, the beam member 100 can exert an electromagnetic shielding effect.

(Fifth Embodiment) In this embodiment, as shown in FIG. 11, a blow mode switching door (a face door in this embodiment) 310 for controlling the conditioned air supplied to the duct opening 201 is connected to an air conditioning duct. 200. Reference numeral 311 denotes a driving unit such as a servomotor for driving the blowout mode switching door (face door) 310.

(Sixth Embodiment) This embodiment relates to a method for fixing a connecting duct (particularly, a connecting duct 210 for a side face). Specifically, as shown in FIGS. 12 to 14, a flange portion extending to the open end of the opening 101 (the end of the beam member 100) is provided on the connecting duct 210 for side face (hereinafter, abbreviated as the connecting duct 210). (Flange portion) 211 is formed integrally with the connecting duct 210, and the flange portion 211 is mechanically fixed to the beam member 100 with a tapping screw (fastening means) 212.

At this time, the airtightness between the connecting duct 210 and the air conditioning duct 200 is ensured as follows.

That is, the size (cross-sectional area) of the opening 200a communicating with the connecting duct 210 formed in the air conditioning duct 200 is made slightly smaller than the outer dimension of the connecting duct 210, and as shown in FIG. The connecting duct 210 is inserted into the opening 200a such that the end 210a of the connecting duct 210 on the air conditioning duct 200 side is located on the inner side of the inner wall of the air conditioning duct 200.

Thus, the air conditioning duct 200 (opening 2)
00a) is elastically deformed so as to be drawn into the inside of the air conditioning duct 200 while being in contact with the tubular portion (outer wall) 210b of the connecting duct 210, so that the elastic force generated by the elastic deformation is generated. (Restoring force) connecting duct 21 with air conditioning duct 200 (opening edge of opening 200a)
The gap with 0 is hermetically sealed.

In this embodiment, the tapping screw 21
The flange portion 211 (connecting duct 210) is fixed (fastened) to the beam member 100 by mechanical fastening means such as 2, but the present embodiment is not limited to this, and rivets and FIG. The flange portion 211 (connecting duct 210) is connected to the beam member 100 by the locking means utilizing such elastic deformation.
May be mechanically fixed (fastened).

By the way, in FIG.
The (locking duct 210) is provided with a locking projection 212a, and the beam member 100 is provided with a locking hole 212b into which the locking projection 212a is inserted. Hole 2 for locking in part 211 (connecting duct 210)
12b, and a projection 212a for locking the beam member 100.
May be provided.

(Seventh Embodiment) In the sixth embodiment, the tubular portion (outer wall) 210b of the connecting duct 210 and the air conditioning duct 2
00 (the opening edge of the opening 200a) to ensure airtightness between the connecting duct 210 and the air conditioning duct 200. In the present embodiment, as shown in FIG. (The opening edge of the opening 200 a) is exposed outside the beam member 100 so as to extend to the flange portion 211, and air conditioning is performed by sandwiching a part of the air conditioning duct 200 between the flange portion 211 and the beam member 100. Duct 200
Are brought into surface contact with the flange portion 211.

In this embodiment, the flange 211
A part of the air conditioning duct 200 is sandwiched between the beam member 100 and the
11, but the present embodiment is not limited to this. As shown in FIG. 18, the air-conditioning duct 200 is not sandwiched between the flange portion 211 and the beam member 100, Part of the air-conditioning duct 200
The flange portion 211 protruding outward may be brought into surface contact with the entire outer periphery of the 10b.

(Eighth Embodiment) In the sixth and seventh embodiments,
The connecting duct 210 is fixed to the beam member 100 by fixing (fastening) the flange portion 211 to the beam member 100. In the present embodiment, as shown in FIG. 19, the connecting duct 210 is fixed to the reinforcing member 120. Connecting duct 210
Is fixed to the beam member 100.

In this embodiment, the connecting duct 210
And the reinforcing member 120 are provided at a first flange portion 211a that protrudes outward over the entire circumference of the cylindrical portion (outer wall) 210b of the connecting duct 210, and at a plurality of locations substantially parallel to the first flange portion 211a. Second flange portion (claw portion) 21
1b, the reinforcing member 120 is fixed so as to sandwich it. The connecting duct 210 and the air conditioning duct 2
The airtightness with 00 is ensured by the same means as in the sixth embodiment.

By the way, the second flange portion (claw portion) 211b
The connecting duct 210 has a slightly smaller protrusion size than the first flange portion 211a, and has a tapered portion inclined toward the insertion (mounting) direction D of the connecting duct 210 on the air conditioning duct 200 side. Insertion (mounting)
Simplicity.

In FIG. 19, the reinforcing member 120 is connected to the beam member 10 by mechanical fixing means (fastening means) such as rivets.
Although it is fixed to 0, the fixing method of the reinforcing member 120 is not limited to this, and may be fixed by a joining method such as welding or adhesion.

Further, in the present embodiment, the hole 120a for mounting the connecting duct 210 is provided in the reinforcing member 120. However, the present embodiment is not limited to this, and the connecting duct 210 is connected to the reinforcing member 120. May be fixed to the reinforcing member 120 or the bracket member 110 so as to be adjacent to the reinforcing member 120 or the bracket member 110 via a mounting member such as a stay member without providing a hole for mounting the bracket.

(Ninth Embodiment) In the present embodiment, as shown in FIG. 20, the opening 101 over the entire area in the longitudinal direction of the beam member 100 is closed by the reinforcing member 120 over substantially the entire area. As shown in FIG. 21, the beam member 100 and the reinforcing member 120
The air-conditioning duct 200, the electric wiring W / H, and the wiring cover 220 are housed in the closed space defined by the above.

The reinforcing member 120 is connected to the air conditioning duct 20.
0, the electric wiring W / H and the wiring cover 220 are connected to the beam member 10
After being housed in the housing 0, it is fixed to the beam member 100 by mechanical fixing means such as rivets and tapping screws.

In FIG. 21, the reinforcing member 1 is provided by mechanical fixing means (fastening means) such as rivets and tapping screws.
Although 20 is fixed to the beam member 100, the present embodiment is not limited to this, and may be fixed by a joining method such as welding or bonding.

(Other Embodiments) In the above embodiment, the beam member 100 was opened upward. However, the present invention is not limited to this. For example, as shown in FIG. It may be on the lower side (see FIG. 22A) or on the rear side of the vehicle (see FIG. 22B).

In the above embodiment, the beam member 100
Among them, the reinforcing member 120 is provided at a portion that supports the steering shaft, but the present invention is not limited to this, and as shown in FIG.
20 may be provided.

In the above embodiment, the beam member 100
Among them, the reinforcing member 120 is provided at a portion supporting the steering shaft, but the present invention is not limited to this, and the reinforcing member 120 may be omitted.

Also, the center face connecting duct 230
The connection method between the air conditioner duct 200 and the air conditioner duct 200 is not limited to the method described in the above embodiment, and may be connected to the air conditioner duct 200 by, for example, the same method as the side face connecting duct 210.

Also, the side face connecting duct 210
The connection method between the air conditioner duct 200 and the air conditioner duct 200 is not limited to the method described in the above embodiment, and may be connected to the air conditioner duct 200 by, for example, the same method as the center face connecting duct 230.

In the above embodiment, the beam member 100
Was formed by extrusion, but the present invention is not limited to this, and may be formed by, for example, drawing or press molding.

[Brief description of the drawings]

FIG. 1A is a perspective view showing a vehicle duct structure according to a first embodiment of the present invention, and FIG. 1B is an AA line of FIG.
It is sectional drawing.

FIG. 2 is a perspective view of a beam member according to the first embodiment of the present invention.

FIG. 3 is an enlarged sectional view of a center face connecting duct portion in the vehicle duct structure according to the first embodiment of the present invention.

FIG. 4 is a top view of a center face connecting duct portion in the vehicle duct structure according to the first embodiment of the present invention.

FIG. 5 is a top view of a center face connecting duct portion in a vehicle duct structure according to the related art.

FIG. 6 is a perspective view showing a vehicle duct structure according to a modification of the first embodiment of the present invention.

FIG. 7 is an enlarged sectional view of a center face connecting duct portion in a vehicle duct structure according to a second embodiment of the present invention.

FIG. 8 is a perspective view showing a vehicle duct structure according to a third embodiment of the present invention.

FIG. 9 is a cross-sectional view of a duct structure for a vehicle according to a fourth embodiment of the present invention, which is a cross-section corresponding to a cross-section taken along line AA of FIG.

FIG. 10 is a cross-sectional view of a duct structure for a vehicle according to a fourth embodiment of the present invention, taken along a cross section corresponding to a cross section taken along line AA of FIG.

11A is a perspective view showing a vehicle duct structure according to a fifth embodiment of the present invention, and FIG. 11B is a perspective view showing A- in FIG.
It is A sectional drawing.

FIG. 12 is a cross-sectional view showing an assembly portion of a connecting duct in a vehicle duct structure according to a sixth embodiment of the present invention.

FIG. 13 is a perspective view of a connecting duct in a vehicle duct structure according to a sixth embodiment of the present invention.

FIG. 14 is a perspective view showing an assembly portion of a connecting duct in a vehicle duct structure according to a sixth embodiment of the present invention.

FIG. 15 is a cross-sectional view showing an assembly portion of a connecting duct in a vehicle duct structure according to a sixth embodiment of the present invention.

FIG. 16 is an explanatory view showing a fastening structure between a connecting duct and a beam member in a vehicle duct structure according to a sixth embodiment of the present invention.

FIG. 17 is a cross-sectional view showing an assembly portion of a connecting duct in a vehicle duct structure according to a seventh embodiment of the present invention.

FIG. 18 is a cross-sectional view showing an assembly portion of a connecting duct in a vehicle duct structure according to a modification of the seventh embodiment of the present invention.

FIG. 19 is a cross-sectional view showing an assembly portion of a connecting duct in a vehicle duct structure according to an eighth embodiment of the present invention.

FIG. 20 is a perspective view showing a vehicle duct structure according to a ninth embodiment of the present invention.

FIG. 21 is a sectional view of a vehicle duct structure according to a ninth embodiment of the present invention.

FIG. 22 is a cross-sectional view of a duct structure for a vehicle according to a modified example of the present invention, taken along a section corresponding to the AA section of FIG.

FIG. 23 is a perspective view of a beam member according to a modification of the present invention.

FIG. 24A is a perspective view showing a vehicle duct structure according to the related art, and FIG. 24B is a cross-sectional view of the vehicle duct structure according to the related art.

[Explanation of symbols]

100: beam member, 110: bracket member, 120: reinforcing member, 200: air conditioning duct, 201: center duct opening, 210: connecting duct for side face.

Claims (14)

[Claims] 1. A beam member (100) having an open cross section having an opening (101) extending in the vehicle width direction and assembled and fixed to a vehicle body and opened in a direction orthogonal to the longitudinal direction; ) Is incorporated into the beam member (100) to form a passage through which the air flows, and the resin air conditioning duct (200); and the beam member (100) provided at both ends in the longitudinal direction of the beam member (100). ) Closes the longitudinal end of
An air-conditioning duct structure for a vehicle, comprising: a bracket member (110) for fixing the beam member (100) to a vehicle body. 2. An air outlet opening in a design panel covering the air conditioning duct (200) and the air conditioning duct (20).
0), and a connecting duct (230) for connecting to the duct opening (201) opened in the air conditioning duct (200).
01) is provided in the air-conditioning duct (20).
2. The air-conditioning duct structure for a vehicle according to claim 1, wherein a reinforcing member (103, 240) is provided to prevent 0) from being crushed in the opening direction of the duct opening (201). 3. The beam member (100) is made of metal, and the reinforcing member (103) is formed by cutting and raising a part of the beam member (100). 3. The air conditioning duct structure for a vehicle according to 2. 4. An air outlet opening in a design panel covering the air conditioning duct (200) and the air conditioning duct (20).
0), and the connecting duct (230) is connected to the air-conditioning duct (20).
0) Connection member (240) molded from harder resin
The air-conditioning duct structure for a vehicle according to claim 1, wherein the air-conditioning duct (200) is connected to the air-conditioning duct (200). 5. An air outlet opening to a design panel covering the air conditioning duct (200) and the air conditioning duct (20).
0), and a duct reinforcing portion (1) for reinforcing the connecting duct (210).
The air conditioning duct structure for vehicles according to claim 1, wherein 40) is formed by at least one of the beam member (100) and the bracket member (110). 6. The air-conditioning duct (200) is provided with a resin-made wiring cover (220) for covering an electric wiring (W / H). The vehicle air-conditioning duct structure according to one of the above aspects. 7. The vehicle duct structure according to claim 6, wherein the beam member (100) is provided with a wiring supporting portion (130) for supporting the wiring covering portion (220). . 8. A reinforcing member (12) having a partially cross-sectional shape of the beam member (100) in the beam member (100).
The duct structure for a vehicle according to any one of claims 1 to 7, wherein 0) is provided. 9. An air outlet opening in a design panel covering the air conditioning duct (200) and the air conditioning duct (20).
0), and the connecting duct (120) is provided with mechanical fastening means (21).
The air conditioning duct structure for a vehicle according to claim 1, wherein the air conditioning duct structure is fixed to the beam member (100) in 2). 10. The connecting duct (210) such that an end (210a) of the connecting duct (120) on the side of the air conditioning duct (200) is located on an inner side of an inner wall of the air conditioning duct (200). ) Is the air conditioning duct (200)
The vehicle air-conditioning duct structure according to claim 9, wherein the air-conditioning duct structure is fitted in the air conditioning duct. 11. A flange (211) projecting outward over the entire outer periphery of a cylindrical portion (210b) of the connecting duct (210) and a part of the air conditioning duct (200) come into surface contact. The air-conditioning duct structure for a vehicle according to claim 9, wherein: 12. A part of the air conditioning duct (200),
The air conditioning duct structure for a vehicle according to claim 11, wherein the flange portion (211) is in surface contact with the flange portion (211) while being sandwiched between the beam member (100) and the flange portion (211). 13. An air outlet opening to a design panel covering the air conditioning duct (200) and the air conditioning duct (2).
(00) and the beam member (100) by closing the opening (101).
And a reinforcing member (120) having a closed cross-sectional shape. The connecting duct (120) is connected to the reinforcing member (12).
The air-conditioning duct structure for a vehicle according to claim 1, wherein the air-conditioning duct structure is fixed to at least one of the bracket (0) and the bracket member (110). 14. An open-section beam member (100) having an opening (101) extending in the vehicle width direction and assembled and fixed to a vehicle body, and having an opening over the entire area in the longitudinal direction, and the opening (101). And a resin air-conditioning duct (200) that is incorporated into the beam member (100) and constitutes a passage through which air flows, and the beam member (100) provided at both longitudinal ends of the beam member (100). While closing the longitudinal end of the
A bracket member (110) for fixing the beam member (100) to a vehicle body; and a reinforcing member (120) for closing the opening (101) over substantially the entire area. The air conditioning duct structure for a vehicle, wherein the air conditioning duct (200) and the electric wiring (W / H) are housed in a closed space formed by the reinforcing member (120).